SI91821DH-33-T1 Vishay, SI91821DH-33-T1 Datasheet - Page 9

• Manufacturer Part Number: SI91821DH-33-T1
• Description: IC, LDO VOLT REG, 3.3V, 0.3A, MSOP-8
• Manufacturer: Vishay

Specifications of SI91821DH-33-T1

• Primary Input Voltage: 6V
• Output Voltage Fixed: 3.3V
• Dropout Voltage Vdo: 120mV
• No. Of Pins: 8
• Output Current: 300mA
• Operating Temperature Range: -40°C To +85°C
• Termination Type: SMD
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Document Number: 71614
S-51147–Rev. E, 20-Jun-05
TYPICAL WAVEFORMS
100 mA/div
100 mA/div
10 mV/div
10 mV/div
10 mV/div
2 V/div
5.00 ms/div
20 ms/div
5.00 ms/div
I
I
V
V
V
LOAD
LOAD
OUT
OUT
OUT
V
IN
Load Transient Response-1
Load Transient Response-3
LineTransient Response-1
V
V
C
C
I
t
LOAD
rise
INSTEP
OUT
OUT
IN
V
C
I
t
V
C
I
t
LOAD
rise
LOAD
rise
= 2.2 mF
OUT
OUT
= 5 msec
OUT
OUT
= 2.2 mF
= 300 mA
= 2.775 V
= 2 msec
= 2 msec
= 4.77 to 5.77 V
= 2.2 mF
= 1 to 150 mA
= 1.0 mF
= 1 to 150 mA
= 2.775 V
= 2.775 V
100 mA/div
100 mA/div
10 mV/div
10 mV/div
10 mV/div
2 V/div
5.00 ms/div
20 ms/div
I
5.00 ms/div
I
V
V
V
V
LOAD
LOAD
OUT
OUT
OUT
OUT
Load Transient Response-2
Load Transient Response-4
LineTransient Respons-2
V
V
C
C
I
t
LOAD
fall
INSTEP
OUT
OUT
IN
V
C
I
t
V
C
I
t
LOAD
fall
LOAD
fall
= 5 msec
OUT
OUT
= 2.2 mF
OUT
OUT
= 2 msec
= 2 msec
= 2.2 mF
= 300 mA
= 2.775 V
= 2.2 mF
= 1.0 mF
= 150 to 1 mA
= 150 to 1 mA
= 5.77 to 4.77 V
= 2.775 V
= 2.775 V
Vishay Siliconix
Si91821
www.vishay.com
9